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The most common sign of problems with your Geyser is problems with hot water. Most water heaters are 150L – 200L in size which is a lot of hot water but over time mineral deposits build-up around the heating element, less and less heat reaches the water and the hot water supply diminishes.
Eventually, the constant heating the Geyser begins to leak, or the element itself needs to be replaced. Noisy Geyser
The second most common sign of a failing Geyser is popping or banging noises. This is also related to the buildup of mineral deposits in the tank. As the water heater tries to heat the water the deposits insulate the heat from the water causing the tank to overheat and make these noises. This constant overheating of the tank causes metal fatigue and the tank eventually fails and starts to leak.
Cloudy or water with a smell is a sign that your geyser is failing.
Rusting is inevitable at some point your geyser will rust because of the water and steel which the geyser is made from. Geyser use an anode rod to prevent corrosion, this rod will eventually be depleted by natural corrosion. This is when the corrosive forces attach to the tank and connections causing them to eventually leak or burst.
Every geyser should have a temperature and pressure relief valve installed, also every Geysers have a safety relief valve to release pressure. If this valve becomes faulty or is capped off, the tank can explode with the force of a small bomb! Never cap off a temperature and pressure relief valve, you must replace any faulty or leaking values.
Leaking water from the tank is the most common obvious sign of a geyser that needs to be replaced before it damages your home. A leaking Geyser can flood your entire home.